Oh god. Yeah there's a fair share of weird junk on that site, which probably goes hand-in-hand with having the necessary paranoia to build your own nonlinear junction detector.
I found the link on Hackaday way back when, I have no idea about the rest of this shady IP address. Should have probably been more careful about posting something like this, but the electronics builds are so well documented.
I found the link on Hackaday way back when, I have no idea about the rest of this shady IP address. Should have probably been more careful about posting something like this, but the electronics builds are so well documented.